PNI SENtral MandM - Manual (Page 5)

PNI Sensor Corporation Doc #1020129 revE
SENtral M&M Technical Datasheet Page 4

Small form-factor. 1.6x1.6x0.5 mm chip-scale package on 0.4 mm pitch. Uses little
PCB real estate, allowing for painless integration.

I
2
C interface. Uses industry-standard I
2
C protocol in a low-power implementation to
interface to the sensors and the host, so system integration is straightforward.
Standard, Fast, Fast Plus, and High Speed are supported on the host bus.

Outputs. SENtral natively outputs Euler angles (heading, pitch, and roll),
quaternions, rotational velocity, linear acceleration, and magnetic field.

Pass-Through allows for direct communication with devices on the I
2
C sensor bus.
1.2 SENtral M&M System Overview
Figure 1-1 provides a reference schematic for SENtral M&M modules. While this diagram
applies for most versions of the SENtral M&M, the White and Blue M&M modules differ
from what is shown. Specific schematics for each module are available from PNI on request.
How to interface with the SENtral M&M is covered in more detail in Section 3.
Figure 1-1: SENtral M&M Module Reference Schematic
A few points on diagram:

The layout shows a discrete magnetometer, accelerometer, and gyroscope. SENtral
M&M modules generally incorporate a combo sensor that combines the gyroscope
and accelerometer into a single device or all three sensors into a single device.